| Aquatic exercise can be very beneficial for a variety | | | | water, heart rates on average are decreased 13% or |
| of patients: seniors, athletes needing injury | | | | 17 bpm from those on land. |
| rehabilitation, and pregnant women are just a few of | | | | ¨ Intensity must also take into account the |
| the groups that aquatic exercise can benefit. Few | | | | effects of medications or specific disease conditions. |
| practitioners know what to look for when they refer | | | | ¨ To increase the heart rate, use shorter levers |
| their patients to an aquatic exercise program, though. | | | | and less elevation of movements. |
| Most usually tell their patients to "join a water | | | | ¨ Using the arms overhead increases the heart |
| aerobics class" and leave it at that, without really | | | | rate, but not the stroke volume, so the cardiac |
| knowing what the patient may be getting into. Below | | | | output may not be enough to achieve cardiovascular |
| are some of the things health practitioners should | | | | fitness. |
| consider when referring their patients for aquatic | | | | ¨ You cannot use sweat to correlate to exercise |
| exercise. | | | | intensity. You may sweat in the water without |
| Referring Patients for Aquatic Exercise | | | | knowing it. |
| ¨ Observe classes in your area. | | | | ¨ New exercisers must be taught the difference |
| ¨ Know the pool temperature. (86º or | | | | between "bad pain" and "good pain" (from exercising). |
| higher for arthritics, 79-82º for lap swimming) | | | | Aquatic Exercise and Pregnancy |
| ¨ Know the special needs accessibility of the | | | | ¨ Benefits of aquatic exercise during pregnancy: |
| pool and locker rooms | | | | ¨ decreased impact. |
| ¨ Check on third party payer reimbursement. | | | | ¨ decreased gravitational pull. |
| ¨ Think of your patient. Would you send a | | | | ¨ cooling effect of water prevents overheating. |
| 70-year-old to a class at a mirror-clad health club, or | | | | ¨ heart rate doesn't increase as much as with |
| to a YMCA? Does a 20-year-old athlete need to be in | | | | land exercise. |
| an Arthritis Foundation level class? | | | | ¨ hydrostatic pressure pushes excess fluid into |
| Safety Issues | | | | the bloodstream, decreasing edema. |
| ¨ Is a lifeguard present? | | | | ¨ less of a heavy, clumsy feeling in the water. |
| ¨ How comfortable is the patient in the water? | | | | ¨ feel like they can move with more grace. |
| ¨ Is there food available in the area for diabetics | | | | ¨ Safer. |
| if necessary? | | | | ¨ Emphasize simply maintaining their current |
| ¨ Is there a first aid kit? | | | | fitness level instead of trying to improve it. |
| ¨ Is there a backboard? | | | | ¨ Pregnancy may be the first time she considers |
| ¨ Is there a phone? | | | | fitness, so she may need more feedback from the |
| ¨ Is there a defibrillator on the premises? | | | | instructor. |
| ¨ Are the instructor and lifeguard aware of your | | | | ¨ Special needs for pregnant patients in aquatic |
| patient's particular problem? | | | | exercise: |
| Aquatic Exercise Design | | | | ¨ longer warm-up and cool-down |
| ¨ Water affects each body type/design/fat | | | | ¨ gradual intensity changes and longer transition |
| distribution differently. For example, males will have a | | | | times |
| harder time in deeper water than will females due to | | | | ¨ simple choreography |
| wider shoulders and narrower hips. Pear-shaped | | | | ¨ caution against overstretching |
| patients will have a harder time keeping their legs | | | | ¨ good chance to educate on proper nutrition |
| from floating, due to their fat distribution, so they will | | | | and hydration |
| need to exercise more abdominal control. | | | | ¨ Pregnant women can safely perform supine |
| ¨ The same exercise will work different muscles, | | | | abdominal exercises in the water because there is no |
| depending on the depth of the water. | | | | pressure on the vena cava like there would be on |
| ¨ Changing the speed of the exercise changes | | | | land. (Must check for diastasis recti, though.) |
| the amount of friction, which changes the resistance. | | | | ¨ Intensity should reflect how they feel today, |
| ¨ Currents change proprioception, stability, and | | | | not how they "usually" exercise. |
| level of control. | | | | ¨ If a pregnant woman is in a mixed class, do |
| ¨ Water at neck level supports 90% of the | | | | not single her out. Talk to her about special |
| body's weight; water at mid-torso level supports | | | | precautions either before or after class. |
| 75% of the body's weight, and water at waist level | | | | Strength Training in the Water |
| supports 50% of the body's weight. How deep the | | | | ¨ Of all the body systems, the |
| patient should be depends on their individual needs. | | | | neuromusculoskeletal system can demonstrate the |
| ¨ In most aquatic exercises, there is frequent | | | | most visibly dramatic difference between a |
| use of the abdominals to maintain position, without | | | | completely sedentary person and a person who |
| doing sit-ups/crunches. | | | | conscientiously trains. |
| ¨ Emphasize posture and body position to get | | | | ¨ A 1990 study of 86-96 year olds in long term |
| the most benefit from aquatic exercise. | | | | care facilities with only 8 weeks of aquatic strength |
| ¨ Start easy to avoid discouragement. | | | | training to their knee extensors there was an |
| Intensity of Aquatic Exercise | | | | average strength increase of 180%. Some subjects in |
| ¨ Intensity should not be based on heart rate. | | | | the study were even able to eliminate their use of |
| Heart rates are only valid of they correlate to | | | | canes when walking. |
| oxygen consumption. Heart rates will be lower in the | | | | ¨ Aquatic strength training does not increase the |
| water because water dissipates heat more | | | | number of muscle fibers, but does increase their size, |
| effectively than air, so the heart doesn't beat as fast | | | | the number of fibers activated, the number of |
| to cool the body; decreased gravitational pull eases | | | | capillaries going to the muscle fibers, and the |
| venous return; and hydrostatic effects shift blood | | | | mitochondrial efficiency in the muscles. |
| volume from the extremities to the thorax. In the | | | | |